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Alerts and Notices Product Notices

Product Notice 23-66: Additional Exchange Products Approved for Trading

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Effective Rule Filings Rule Filings

SR-MEMX-2023-07: Proposed Changes to Fee Schedule

Date Filed: March 31, 2023 Description: Proposed rule change to amend the Fee Schedule to amend the Fee Schedule to modify the required criteria under NBBO Setter/Joiner Tier 1.

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Alerts and Notices Trader Alerts

Trader Alert 23-13: Fee Schedule Update Effective April 3, 2023

Effective Monday, April 3, 2023, MEMX will be implementing the following change to transaction fees, subject to filing with the SEC: Remove the alternative criteria under NBBO Setter/Joiner Tier 1.  The change is reflected in bold text below.  NBBO Setter/Joiner Tiers Tier Additive Rebate Per Share* Required Criteria Tier 1 $(0.0004) Member has (1) an […]

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Alerts and Notices Product Notices

Product Notice 23-64 to 23-65: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 23-62 to 23-63: Additional Exchange Products Approved for Trading

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605 Reports

February 2023

Rule 605 Disclosure of Order Execution Information

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Alerts and Notices Trader Alerts

Trader Alert 23-12: MWCB Testing Opportunity – April 1, 2023

The Securities Information Processors (“SIPs”) will conduct data center failover testing as well as Market-Wide Circuit Breaker (“MWCB”) breach Level 1 and 2 on Saturday, April 1, 2023. In coordination with other market participants, MEMX will participate in the test and published a test script: MEMX 2023 Market-Wide Circuit Breaker Test Script. Certain members designated by MEMX […]

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Alerts and Notices Product Notices

Product Notice 23-61: Additional Exchange Products Approved for Trading

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Alerts and Notices Regulatory Notices

Regulatory Notice 23-03: Mandatory Participation in Market-Wide Circuit Breaker Testing

Date: March 24, 2023 Description: Reminder regarding mandatory Market-Wide Circuit Breaker Testing for certain Members designated by MEMX pursuant to Exchange Rule 11.16.

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Alerts and Notices Trader Alerts Uncategorized

Trader Alert 23-11: Holiday Reminder – Closed April 7, 2023

MEMX will be closed Friday, April 7, 2023, in observance of Good Friday. Normal trading will resume on Monday April 10, 2023. MEMX Market Hours and Holiday Schedule Please contact Market Operations with any questions. MEMX Market Operations mops@memx.com 1-833-415-6677